I was on a British Airways flight from London to Chicago that had a similar alarm problem on a 767 which indicated landing gear failure. But on that flight, the

I was on a British Airways flight from London to Chicago that had a similar alarm problem on a 767 which indicated landing gear failure. But on that flight, they shut it off manually after 15 minutes or so. I did notice that while we were still over the UK, the flight info system with the map kept showing all kinds of odd locations as our destination, as if the pilots were planning to set down at the nearest airport if anything else strange happened. Before landing at Chicago they warned us that the alarm would sound again, and that we should prepare for a rough landing in case the wheels did not come down fully. We also made a pass over the airport for someone on the ground to look at the landing gear with binoculars. The landing was normal.